TM-9-2350-247-10 Operator Manual M548A1 M548A3 Tracked Cargo Carrier Download
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TM 9-2350-247-10 CHECK INSTRUMENT PANEL (M548A1) — Continued 0018 00 4. The HI TEMP DIFF OIL light will come ON if the temperature of the differential oil goes above 300 F to 310 F (149 C to 154 C). Then you have to troubleshoot the differential (WP 0055 00). 5. The coolant temperature gauge may show a normal operating temperature between 160 F and 230 F (71 C and 110 C). Any temperature in this range is OK. If the temperature goes higher than 230 F (110 C), troubleshoot the engine (WP 0055 00). Normally the temperature won’t go below 160 F (71 C) once the engine warms up unless you have to idle in arctic temperatures (below -25 F (-32 C)). If the coolant temperature drops to 140 F (60 C), run the engine at 1200–1500 rpm until it warms up. If the temperature gauge doesn’t work, notify unit maintenance. 6. The battery-generator gauge actual conditions are: LOW (left red zone) = Dead battery or short circuit; DISCHARGE (yellow zone) = Upper (right) half OK with engine off, lower (left) half indicates low battery; CHARGE (green zone) = OK with engine on; HIGH (right red zone) = Overcharge. If the needle stays in either red (low or high) zone, shut down engine and notify unit maintenance. The pointer can vary to the right or left depending on battery condition or electrical equipment in use. END OF TASK 0018 00-2